This week the University of Michigan offered to make Jim Harbaugh the highest paid coach in any level of football. It was a stunning six-year, $48 million dollar offer, and multiple sources reported that Harbaugh was heavily considering the offer.

Michigan Offers Harbaugh Mammoth Deal

If ESPN's Marcellus Wiley is to be believed, the 49ers coach isn't just considering the offer -- he's already taken it.

Speaking on SportsNation on Friday afternoon, Wiley claimed that Harbaugh has actually inked the massive deal with the Wolverines, but both sides are keeping an official announcement hush-hush for another two weeks.

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The school fired head coach Brady Hoke after four up-and-down seasons with the team. Harbaugh has been rumored to be UM's top choice ever since, but most sources stated that Harbaugh heavily preferred to stay on the NFL level first and foremost.

Harbaugh has deep dies to Ann Arbor, having played quarterback there in the mid-'80s under legendary coach Bo Schembechler. Harbaugh has taken the 49ers to three straight NFC championships and had significant success at the college level on both Stanford and the University of San Diego.

'Michigan Man' Concept Won't Influence Search

Mississippi State's Dan Mullen, UCLA's Jim Mora, Duke's David Cutcliffe, and LSU's Les Miles have also been linked to the Wolverines coaching search in recent weeks.